Single bleed fault ECAM action and PRO ABN do not mention descent but MEL limits ops above FL315. So in case of bleed fault in flt. Would you descent?
Depends on your aircraft - keep an eye on the cabin alt and diff press. I've had a bleed fail in flight twice above FL315. One time, there was no problem, the other, the cabin alt started creeping up as it was an older aircraft with leaky door seals. We descended.
As in all cases, you need to know the procedures but also have the knowledge to apply them effectively. A bit of airmanship and common sense is always required.